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Originally Posted by mitch1965
'85 K20 tired350/th350, 4.10 gears
I am averaging 10.5 - 11mpg. I just rebuilt the stock Rochester Q-jet, but I am contemplating swapping this for the Edelbrock 1406.
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DONT! the larger primaries of the 1406 will kill you low end power, as well as mpg. i went trhough the same thing with my Trans Am, and noticed a significant loss in fuel economy, as well as upper end power because the secondaries on the 1406 are so much smaller. yes, your grandma could tune the 1406, but with a little work the QJet will make you much happier.